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[Qemu-devel] [Bug 1603734] Re: Hang in fsqrt
From: |
Ziyue Yang |
Subject: |
[Qemu-devel] [Bug 1603734] Re: Hang in fsqrt |
Date: |
Wed, 14 Dec 2016 13:07:59 -0000 |
Bug fixed showed by https://github.com/unicorn-engine/unicorn/pull/609
and the test case shows no problem on the most recent release.
** Changed in: qemu
Status: New => Fix Released
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https://bugs.launchpad.net/bugs/1603734
Title:
Hang in fsqrt
Status in QEMU:
Fix Released
Bug description:
At least qemu-i368 and qemu-x86_64 hang in floatx80_sqrt in versions
2.6.0 and git (2.6.50) for some input values, likely due to an
infinite loop at fpu/softfloat.c:6569.
Steps to reproduce:
1) Compile attached code: gcc -o test test.c -lm
2) `qemu-i368 test` and `qemu-x86_64 test` will hang at 100% cpu
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